Spekulaas/Blockchain_School
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge branch 'main' of git.aterve.com:Spekulaas/Blockchain_School

Browse Source
This commit is contained in:
Spekulaas 2023-10-03 13:21:09 +02:00
commit 8edf706e22
1 changed files with 89 additions and 100 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
period_1/04-blockchain_class/405_HW3_Tamper-Proof_Chain/BlockChain.py
View File

@ -64,11 +64,6 @@ class CBlock:
def mine(self, leading_zeros): def mine(self, leading_zeros):
self.nonce = 0 self.nonce = 0
if self.previousBlock:
self.previousHash = self.previousBlock.blockHash
else:
self.previousHash = None
while True: while True:
digest = self.computeHash() digest = self.computeHash()
@ -85,16 +80,10 @@ class CBlock:
# The computed digest of the current block # The computed digest of the current block
# The stored digest of the previous block # The stored digest of the previous block
# return the result of all comparisons as a boolean value # return the result of all comparisons as a boolean value
# def is_valid_hash(self):
# if(self.previousBlock == None):
# return True
# if(self.computeHash() != self.blockHash or self.previousBlock.blockHash != self.previousBlock.computeHash()):
# return False
# return self.previousBlock.is_valid_hash()
def is_valid_hash(self): def is_valid_hash(self):
if self.previousBlock: if(self.previousBlock == None):
self.previousHash = self.previousBlock.computeHash() return True
return self.computeHash() == self.blockHash if(self.computeHash() != self.blockHash or self.previousBlock.blockHash != self.previousBlock.computeHash()):
return False
return self.previousBlock.is_valid_hash()